Combined stationary and rotary shelf for stove ovens



Feb. 21, 1928; I 1,660,200

C. A. KUMMERMEHR ET AL COMBINED STATIONARY AND ROTARY SHELF FOR STOVEOVENS Filed May 11, 1927 I V L Z? 5 9 I Z 9 3 I I [anemia/ a:

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E g I 4 5 Z5 a: 39 E RNEY Patented Feb. 21, 1928.

entrain STATES PATENT OFFICE.

CARL A. KTJ'MMERMEHR AND ARTHUR J. TRIBOUI, or snLLnviLLn, ILLINOIS.

COMBINED STATIONARY AND ROTARY SHELF FOR STOVE OVENS.

Application filed Ma 11, 1927.

Our invention relates to a combined stationary and rotary shelf forstove ovens.

The object of our invention is the provi sion of ashelf for stove ovensto be supported bythe usual shelfsupports. within the oven, and whensupported thereby with one side up, it will provide a rotary shelf, and,when supported thereby with the other side up, it will provide astationary shelf.

A further object of the invention is the provision of a stove oven shelfwhich consists of two shelf members, one of which is rotatably supportedby the other, and'which latter is supported by the usual .oven shelfguides whether the device is to be used as a rotarv shelf or astationary shelf.

A still further object of the invention is.

to provide the rotary shelf member in the upper face of its outer ringmember with a plurality of finger or tool engaging recesses tofacilitate rotary movement of the rotatably mounted shelf.

A still further object of the invention is the provision of a bearingring forming a part of the stationary shelf member upon which the rotaryshelf member isrotatable.

A still further object of the invention is the provision of a pivot pinwhich will prevent spreading or detachment of the two shelf members.

A still further object of our invention is the provision of a combinedstationary and rotary shelf for stove ovens, which possesses advantagesin points of simplicity and efli'-.

ciency, and, at the same time proves itself comparatively inexpensive incost ofmanufacture. With the above and other objects in view, theinvention consists in the novelfeatures of construction, arrangementand'combination of parts herein after more fully described and finallypointed out in the claims hereto appended. i

7 Drawings. Fig. 1 is a top plan view ofthe stationary shelf andsupporting member.

Fig. 2, isa top plan view of the rotary- Serial 310,190,605.

shown as supported in a stove oven with the rotary shelfmember disposedso as to support cooking, roastingor' baking utenand 5, so that thestationary shelf and supporting member can be used for supportingcooking utensils instead of the rotary shelf member.

Fig. 7', is a detail in sectional elevation of the pivotconnectionbetween the two shelf members.

In the drawings, the reference numeral 1 designatesthe side walls ofastove oven which are provided with the usual rest mem bers 2 to supportan oven shelf.

In carrying out the aim of our invention, we employ a combinedstationary and rotatable stoveovenshelf designated 3. which em bo diesthe features of our invention. The

stationary shelf section comprises a rectangular frame member t havingthe ring member- 5 disposed within the borders of frame member A. Aspider is arranged within the borders of the ring member 5 and therectangular-frame Land consists of a central head portion 6 from whichbars 7 extend to L the ringmember 5 and then continued from the rlngmember 5 by theextensions 8 tothe four sides of the frame 4. Spider bars9 7 also extend from the ring frame member 5 to the four corners of theframe member 4:. This arrangement provides an efficient stationary gratelike shelf for supporting'various kinds of baking "utensils in the usualmanner within a stove oven, as will be apparent in Fig. 6. The spiderbars 7- carry an endless supporting ring 10 which extends upwardlyabovethe upper plane of the spider bars 7, 8 and f the stationary shelfsection to act as a balancing support for the rotary shelf sectionhereinafter described.

The rotary shelf section comprises an outer ring frame member 11, whichis of less diameter than the stationary rectangular frame member 4,shown in Figures 3, 4, 5 and 6,

and a smaller concentrically arranged ring member 12 disposed within theborder of the outer ring member 11. A spider is arranged within theborder of the inner ring mem er 12 and consists of a central headportion 13 from which bars 14; extend to the inner ring members 12 andthen continued from the inner ring member 12 by the extensions 15 to theouter ring member-11. Spider bars 16 also extend radially from theinnerring member 12 to the outer ring member 11 to provide in connection withthe bars 14 and 15, a grate surface.

The rotary shelf section is mounted upon the bearing ring of thestationary square shelf section and the two sections are connected bymeans of a loosely fitted pivot pin 17, which passes upwardly through anopening 18 in the head portion 6 of the square shelf sectionand thenpasses upwardly through an opening 19 in the head portion 18 0fthe-circular rotary shelf section and which acts as a pivotfor therotary shelf section to revolve around as well as maintaining theproperrelation between the two shelfsections. The-lower end-of the pivotpin..17 is provided with a head 20 which is receivable in a recess 21 inthe head portion Bofrtlie squareshelf section and the upper end of .thepi-vot pin 17 isprovided with a head 22 which is receivable in a recess22 in thehead portion 13 oftheirotary shelf section, as. clearly showninFig. 7. The heads. of the. pin. 17 prevent displacement of the pin whichassisted by the supporting ring. 10 prevent; wabbling oritiltingmovement'ofthe rotary. shelf sectionuponthe supporting ring 10. of thestationary square shelf section. The supporting ring 10 is preferablydisposed inwardly of the midwaypointv between the .pivot pin. 19 and therectangular frame membert as it offers little frictionto the rotarymember at this pointallowing therotary shelf section .tobe more easilyrevolved than when it is positioned further outward.

The upper face of the outer ring member llaof therotary shelf isprovided with a suitable recess23 between each spider bar 16 thereofso.that the rotary shelf maybe readily revolved. by the operator, either bythe fingers of the. operator, on by a convenient tool.

In Figures 4 and 5,. thestationaryshelf section is shown as supportedupon therests 2 in reversed relation to that shown in Fig.

6,. whereby the'rotary shelf section is pos1-' tioned above thestationary shelf sect-ion for supportingthe.utensils instead of thestationary shelf section, as illustrated in.Fig..6.

From the foregoing description, itis evi-' dentthat we.have designed ashelf for use injordinary gas or other stoveovens, a shelf that maybequickly placed in the oven, and effectually serve as a rotary shelf,when installed as .shownin Fig. 5, thereby enabling thecook to revolvethe circularshelf to bring the utensils to. the convenient reachv of thecook, so asto prevent burning of the cooks hands, and more important toenable the utensils to be moved with the shelf to various parts of theoven to' receive the desired heat in order thatv the different sides ofthe differrotary shelf section for supporting utensils when cooking orbaking, the shelf may be 'O reversed fromjthe installation shown in Fig.5, to that shown in Fig. 6, which will pro-. videa stationary shelf forsupporting the utensils instead of a rotary shelf, as shown in Fig. 5.When the shelf is installed in an oven, as-shown-in Fig. 6, th'estationary-shelf section. isthe upper or supporting shelf while therotary shelf section is disposed below said shelf section and of noservice at all. not even as asupporting member, but whenit isinstalledas shownin Fig. 5, the rotary shelf section becomes-a support for theutensils-and the stationary shelfgsection merelybecomes asupport-forthe-rotary shelf section. I

The many advantages-- of the herein described invention will readilysuggestthemselves to those skilled in the art to" which it y appertains.

From-the foregoing description, itis evi-I dent'that asimple-devicefor-this purpose has-been disclosed, but it is to beunderstood that we do not desire to-restrict, or limitourselves to. thevery details-ofthe construction shown and described, which is merelyillustrative, it being obvious that changes, not involving the exerciseof invention, may be made without conflicting or departing from v thespirit of the invention within the scope; of the appended claims. I

WVhat We claim-is:

1. In ashelf structure for stove ovens, arectangular shelf section, asupporting ring fixed thereto having its upper plane disposed above theupper planeof the rectangular 105 shelf section, a circular-shaped shelf'section concentrically mounted upon said supportingring, apivotpin'carried icy-the rectangular shelf section and-passing throughsaid circular shaped shelf secti on .around which the 110 circularshaped shelf section is revoluble, a head formedat each end of'the pinand receivable in recesses formed in botlr the rec: tangular andcircular shaped shelf.sections toprevent tilting displacement of thecircu 115 lar shaped shelf section-upon the supporting ring and toprevent separation of the two shelf sections and marginal recessesformed in the upper face of the circular shaped rotary shelf section. aw

2. In a shelf -structure-for stove ovens, a rectangular frame member, aring-member disposed within the borders of the rectangu with the ringmember and having its upper 13 plane disposed above the upper plane ofthe ring member the rectangular frame member and said spider bars, acircular shelf having an outer and an inner ring member, a central headmember, inner spider bars connecting the head member With the inner ringmember, outer spider bars connecting the inner ring member With theouter ring member, said circular shelf having its outer 10 spider barsmounted upon the aforesaid supporting ring and a pivot pin connectingthe circular shelf with the central head member so that the circularshelf Will be rotatable upon the supporting ring and recesses formed inthe upper face of the outer ring member of the circular shelf.

In testimony whereof We have hereunto aflixed our signatures. CARL A.KUMMERMEHR.

ARTHUR J. TRIBOUT.

